A major operator contracted with PeGreSol to do an application on a poorly performing well (best production 12BOPD)and flowline to see if FloWell could assist in controlling the wax problems which often caused intervention by having to dismantle and clean the flowline which was passing through valuable agricultural land through a 2Km flowline. This flowline led to a test separator and then onward to a processing facility.
Prior to the application the well production failed and oil production stopped. Gas lifting was used to recover oil from this well and for over the last few weeks the well showed no signs of recovery. So regardless of zero production it was decided to use FWTO (FloWell Treated Oil) to see if it could clean the Flowline to the separator only.
The application required the FWTO to be injected down the annulus of the well and then using the gaslift process to force the material through the well pipeline and onto the separator via the Flowline. Unfortunately, possibly due to an overzealousness or faulty gauges the planned operation was completed in 40 minutes instead of the 1.5 hours proposed (It is extremely cold (-15°C) and the pump operator maybe wanted to suffer as short a time as possible).
Wax buildup was usually monitored by checking the differential pressure between the WHP and the Separator pressure. After about 8 hours from the application the separator pressure dropped to zero indicating a blockage. Our applications engineer assumed that the application was a failure and the site engineers closed off the flowline and proceeded to examine the separator. On opening it they were astonished to find it was completely blocked with wax and other contaminants including ice. They then proceeded to clean the separator which took many hours until all the contaminants were removed. Once finished they reopened the flowline and as it was extremely late closed down for the night. A total of over 5m3 of contaminants were removed and the total volume of the flowline is approximately 9m3 so it was assumed that all contaminants were removed from the flowline.
The following morning the production supervisor checked the overnight data and was amazed to see that the oil was now flowing again. Not only was it flowing again but production had leapt up to 21BOPD! All data was rechecked but the same results were arrived at.
It is too early to estimate how long this particular well will continue but the facts remain as follows:
1. The well was declared unproductive (dead) before the application.
2. The FWTO was NOT pushed into the formation as planned so revival of the well was totally unexpected by all parties.
3. Only residual FWTO from the application due to Hydrostatic Pressure and Gas Lifting entered the formation.
4. The residual FWTO revived the well.
5. The FWTO cleared all the contaminants in the flowline and dumped them in the separator.
6. Not all wax in the Flowline was returned to liquid phase but it is expected that if the material removed from the separator is continuously mixed with the FWTO used then all wax will be returned to liquid phase and the recovered hydrocarbons can be sent for processing.
It is expected that the FloWell treated flowline will resist any wax buildup for an extended period due to one of the effects of making pipewalls passive to wax crystal attachment and growth as we have seen in all other application but the period of time here is speculative only. FloWell has actively resisted 100 days in previous applications.
We will advise later of the official results from this wellhead but it has exceeded all expectations in a very difficult application and extremely low ambient temperatures.
We continued our journey to Kuala Lumpur and once again were placed in a magnificent hotel with a wonderful view of the twin towers. After a short rest and freshen up we had dinner with our Malaysian agent Ederan Mesra Sdn. Bhd. Azlan Yahya and his partner Khairul Anuar Ali. We discussed the upcoming presentation and sealed the business relationship over a few drinks.
Azlan Yahya and Mike Castlehouse.
Our first meeting was held in the little town of Kertih on the East Coast of the Malaysian peninsular and required a five hour journey in each direction travelling through wonderful countryside and mountainous regions culminating in a pleasant drive up the coast road where the view has not changed in the last 10 years. It was a wonderful opportunity to see the countryside.
We were very pleased at the quality of the personnel attending the meeting they were essentially decision-makers and exactly the people we wished to meet. We were advised that if we had been able to present FloWell one year ago we would have had a project of clearing a pipeline which has now been abandoned and a replacement pipeline put in place. We are unsure if this pipeline still exists and can be brought back in as the secondary line, if this is the case we would certainly welcome this project. Once again the major asset holder suggested we work on resolving problems on one of their offshore platforms and if it is successful (and we know it will be) then there will be another nine oil Wells following immediately.
We returned from a very successful day extremely tired but elated and once again knowing full well that this will generate an application in the very near future. Before it was time to retire we had a couple of drinks in the hotel bar to reflect on the daysevents.
Azlan Yahya and Khairul Anuar Ali from Ederan Mesra Sdn. Bhd either side of Mike Castlehouse and Jay Passey of PeGreSol.
On the Monday we went to our next appointment at the client’s headquarters, an impressive building. There was a good attendance at this meeting, consisting of, asset engineers, asset holders and the process chemistry team. The presentation went exceptionally well and we were inundated with some very qualified questions which we were able to answer satisfactorily. We were requested to provide a sample FloWell to the process chemistry team which has been dispatched from the UK and should be in their hands now. It was indicated by the chairman of the attendees that our agents provide a full and total service and not just the material. It was decided that FloWell and crude oil mixed onshore would then be transported by barge to the offshore platform to minimize the intervention time at the wellhead. We were pleasantly surprised they saw the benefit of bullheading 3000 gallons of FloWell within a mix of crude oil into the formation, enabling the wax free life of the well riser pipe to be extended to the maximum, this makes sense being an offshore platform. At the present moment the material is being examined by the process chemistry team and we fully expect to be invited to quote for the first application within the next week or so.
Sunday morning after a good breakfast was spent preparing for Mondays presentation. Early afternoon we decided to meet up with the guys in Chaplins 339. Nev was in his usual good form, his barmaid for Sunday, Nancy, kept looking across at Mike and after a short while came over and said, “Are you Mister Bean?” I thought that is strange but Mike smiled and said Yes!!! The story was then explained. When Mike was last working in Miri he had a Mini car, he was well known as being the big guy in the little car. One of the girls (more than likely Nancy) back then had started calling him Mister Bean and the name stuck!! I thought Mike must have made a good impression somewhere for the girls to remember him after so long. It was a very pleasant afternoon and a few cold ones were lovely as we watched the local band play. We left early evening and had a lovely dinner in the hotel before retiring to our rooms.
Following our trip to Brunei we then drove overland into Sarawak to the oil town of Miri and were pleasantly surprised to find our accommodation in the new Imperial Palace hotel. We were also delighted to be located very close to one of the most important meeting places for oil and gas engineers, not only in the region, but also from around the world.
We settled in to our rooms to freshen up then headed off to Chaplins 339! Lucky for us it was within 200 meters of the front door. It was even better when Mike located the 100 meter proximity to the hotel side door!!!
The bar is very pleasant and more to the point full of guys in the oil industry. I soon learned that Mike knew most of them and it was quite obvious they were very pleased to see him. I was introduced to Nev, the bar owner, a very easy guy to talk to. I was so pleased to learn Nev had Walkers crisps in the bar and he very kindly gave me my favorite salt & vinegar! The local band was excellent and we spend a very good evening catching up. There seemed to be a very big interest in FloWell and a lot of business cards were exchanged.
This marked the start of a well earned weekend. Miri is a lovely place to unwind but still stay in touch with the day to day happenings and to plan for the week ahead.
The following day, as requested, we attended a meeting at the laboratory with the process chemistry team leader. We were so pleased to be given the opportunity by the gentleman in charge of the oil field to demonstrate the live test. Mike gave a brief introduction of FloWell to the chemist who seemed very skeptical of the claims we made, he referred to them as very bold statements. We informed him that we were fully prepared to stand by our claims and to give him a live demonstration here and now as requested by his superior. We were very disappointed to be told by him that a laboratory was unavailable for our use. He them claimed to be very busy but hoped to get around to testing FloWell sometime in the next week or so. We left him with a full sample bottle.
Hj Ramli then took us on a tour of the local assets, they seemed to be everywhere. We also drove by the Gurkha’s base and surprisingly enough ended up at another of Mike’s favorite coffee shops. We enjoyed light refreshment and discussed the meeting with the chemist. We felt a little deflated but knew that it was only time before wheels within wheels moved in our favor.
Later, at the hotel, we showered and changed for our evening meal. Hj Ramli took us to a fine Indian restaurant where we enjoyed incredible food and a wonderful atmosphere.
We arrived at Brunei airport after changing aircraft at KL. We were met by our newly appointed agent, Hj Ramli Apong. He took us to our hotel to rest and shower before our evening meal. The hotel was perfect. Later we had a wonderful meal prepared by the resident Italian chef.
Our first meeting was led by Mr Mike Castlehouse, our Technical and Marketing Director. It was in the Darat meeting room and attended by members of the oil field maintenance and asset team. The meeting consisted of a powerpoint presentation together with all the necessary discussions. Mike gave an excellent explanation of the benefits of FloWell. The gentleman in charge of the oil field was present for a limited time and appeared to be sufficiently convinced that FloWell was the way to go and before he left instructed the others present to identify the most suitable well for the application. Mike suggested we be given the worst well for a test. He also instructed that the chemical division organize for a laboratory test and discussion regarding the suitability of FloWell. By the end of the meeting everyone was convinced and the enthusiasm of the team was evident. The many questions asked were answered constructively to the satisfaction of the team. The meeting closed but many people stayed to informally discuss FloWell. Mike informed them that we would be able to show a lab test if it was possible to get a wax sample and a bottle of crude. It seemed we were talking to the right people and within five minutes both appeared on the desk! We left the meeting in a very buoyant mood and it was decided refreshments were needed. Hj Ramli took us to one of Mike’s favorite coffee shops, he remembered from the last time he was in Brunei and we enjoyed a well deserved coffee and French toast.
PeGreSol are pleased to announce that we have now received the final results of the first applications for gas/condensate streams. The first application was conducted on 25th September 2011 where streams of gas/condensate converged prior to processing in the condensate plant.
It has now been confirmed that FloWell in the application for the gas/condensate stream is a 100% success. A well-known international company was employed to analyse the gas/condensate stream and provide a report on its findings on the same. This company sought to provide the materials for resolving the wax precipitation in the stream from their own portfolio but the decision was made by the client to use FloWell instead as the oil well results indicated better prospects of success. The only piece of data that was useful to FloWell from the analysis was the cloud point that proved to be 14°C. This allowed the application engineer to determine the best possible point for the injection of FloWell into the condensate stream. The position chosen was the most convenient where there was a higher temperature than the cloud point. This enabled FloWell to be more effective in not just returning existing precipitation into liquid phase but also to ensure any liquid wax stayed in the liquid phase. It was determined that FloWell would prove more effective applied as a preventative measure rather than a corrective measure and choosing a higher temperature injection point.
As reported previously the effects were immediately apparent. Later on there was clouding on the condensate stream and it was determined that this was previous deposits being re-entrained in the liquid phase within the condensate stream. It was also determined that this was a short-term condition until the assets were fully cleaned of existing works deposits. It has now been confirmed that these findings were absolutely correct and that now the condensate stream is back to its original wax ratio and that all wax is held in liquid phase.
Because of the difficulty of getting measuring equipment into the assets to determine the wax precipitation condition seen previously it was decided to use a thermal imaging camera of extreme sensitivity which would show any wax deposits immediately. This thermal image of the slug catcher showed that there were no more wax deposits on the surfaces, previous pictures of the inside of the slug catcher showed deposits of wax that looked like a snowstorm. This proved that the FloWell application removed the deposits from inside the slug catcher and the wax was being contained in liquid phase.
Such was the success of FloWell that the client is now placing an order for the supply of FloWell for the next 12 months. Another brilliant success story to be added to the applications list of FloWell.
FloWell is a combination of environmentally friendly materials and surfactants within a water-based solution that has proven over the last two years to return paraffin wax precipitation to liquid phase in every application it has been used in. Once it has returned the wax to liquid phase it maintains it in that state all the way to the refinery at temperatures even below the cloud point of the wax within the crude oil stream.
FloWell does not have any adverse effect on the oil stream however it does have an effect on lowering viscosity of the oil as a secondary effect during application.
It is assumed that FloWell provides separation at molecular level which itself causes the wax to return to liquid phase, we also believe that a secondary effect of a similar nature takes place within the components of the crude oil flow causing the reduction in viscosity that is experienced on the application of FloWell. However we only market FloWell and guarantee its performance as paraffin wax remediation and not for the secondary effects which we are unable to substantiate with scientific data, although we are now taking steps to alleviate this by working with the Earth Sciences Department of a major university.
There are many factors that have shown that there is potential for FloWell to be a reservoir stimulant.
There is an indication that within its properties FloWell is able to allow coalescing of gases allowing a reduction of produced gas. Another property of FloWell is that it assists in the separation of produced water and there is clearly defined water cut making it much easier for separators to work more efficiently than ever before.
A recent development has been application of FloWell in a gas/condensate processing plant that were suffering from wax deposits and wax carryover into the processes causing almost catastrophic failures on compressors. Even the slugcatcher looked as though it had been in a snowstorm because of the wax deposits all over. The pipelines were heavily contaminated with wax deposits and these areas are being thoroughly cleaned by adding FloWell into the condensate stream as it leaves the well.
Another secondary effect of FloWell is what our specialist applications engineer calls wax passivation. Even when FloWell has been depleted where it is impossible for there to be any FloWell residue left the wax precipitation which is definitely in the oil stream does not flocculate on the surfaces of the well and equipment as it did before in some cases three months after a one-day application of FloWell. It is almost as though FloWell is breeding and regenerating itself constantly but of course we know this is not the case. Many operators love the fact that they now have constant flow and in most instances increased flow of a better quality product.
However PeGreSol does not recommend this type of use alone because the effect is to send the wax precipitation problem to downstream assets. Although these assets can be cleaned with FloWell all asset holders should get together and discuss the savings that will be provided by applying FloWell continuously at the oil well so that all precipitation is returned to liquid phase and continuing in this way all the way to the refinery. It makes sense to do it this way and then the precipitation problem is eliminated at source and not in many constant individual corrective applications. PeGreSol highly recommends preventative action from the continuous feed of FloWell at the wellhead.
It is unfair in a case of continuous preventative application that the burden of applying FloWell should be borne by the wellhead asset holder especially when the downstream asset holders benefit for free. Therefore it is recommended amongst the asset holders that they agree a percentage of the cost as they will be gaining extreme benefits from the application of FloWell
FloWell demonstrating Wax returning to the Crude – FloWell cleans and rejuvenates Oil Wells, by returning Wax / Paraffin’s back to the Crude Oil Phase – Please visit www.PeGreSol.com for more detail information, and proven client testimonies. No need for Hot Oiling or corrosive Acids, FloWell is working around the world, preventing precipitation for months and increasing, in many cases, substantial production increases !! FloWell is totally environmentally friendly, has NO FLASH POINT, is NON TOXIC, can be safely washed down the drain !!!