Formation Damage Prevention through the Control of Paraffin and Asphaltene Deposition

Newberry, Michael; Barker, K.M.

doi:10.2118/13796-ms

Cited by 76 publications

(21 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…-Reservoir acid stimulation practices, since this could generate asphaltic sludges which may result in asphaItene particles deposition onto the walls of the well tubing [26].…”

Section: Analysis Of Field Datamentioning

confidence: 99%

Heavy Organic Deposition and Plugging of Wells (Analysis of Mexico's Experience)

Escobedo

Mansoori

1992

Proceedings of SPE Latin America Petroleum Engineering Conference

View full text Add to dashboard Cite

The pipeline transportation of petroleum fluids can be significantly affected by flocculation, deposition, and plugging of asphaItene, paraffin/wax, and/or diamondoid in the transfer pipelines, tubulars, pumps, and other equipment. The economic implications of the problem of heavy organic depositions in such processes are tremendous.In this report Mexico's experience with the pipeline plugging due to heavy organic deposition is reviewed and analysed based on the present state of knowledge. The modeling basis of a comprehensive estimation and prediction technique is presented. This technique is based on observed field and laboratory data, statistical mechanical theories, polydisperse polymer solution theory, continuous thermodynamics, electrokinetics and transport phenomena, colloidal solution theory, and the FRACTAL aggregation theory. INTRODUCTIONA number of problems could arise during the production of petroleum which would drastically increase the production costs.

show abstract

“…-Reservoir acid stimulation practices, since this could generate asphaltic sludges which may result in asphaItene particles deposition onto the walls of the well tubing [26].…”

Section: Analysis Of Field Datamentioning

confidence: 99%

Heavy Organic Deposition and Plugging of Wells (Analysis of Mexico's Experience)

Escobedo

Mansoori

1992

Proceedings of SPE Latin America Petroleum Engineering Conference

View full text Add to dashboard Cite

show abstract

“…5-17) Another concern with high iron concentrations is the iron-aggravated deposition of asphaltene materials. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] The oil from the Sadlerochit formation normally does not sludge with HCI or HF acid. When the Fe3+ content in the acid was raised, an iron-aggravated asphaltene precipitation began.…”

Section: Dissolved Solids Analysismentioning

confidence: 99%

Prudhoe Bay Field Study - Return Fluid Analysis

Almond

Brady

Underdown³

1990

Journal of Petroleum Technology

View full text Add to dashboard Cite

Monitoring ionic content of returned fluids after various acidizing treatments gives insight into actual chemical acid-spending processes that occur downhole. In this study, laboratory tests and field treatments were performed, and the resultant dissolution processes were monitored. Results show that the high siderite concentration (6 to 12%) in the Sadlerochit formation accounts for most (-60 to 70%) of the hydrochloric acid spending, as well as -10 to 15% of carbonate spending and -10 to 15% of clay dissolution during HF acid treatments. The HF spending was primarily on quartz! chert in the laboratory. Field results, however, indicate that the secondary clay dissolution process was the primary HF spending reaction.

show abstract

“…The amounts of carbon and hydrogen in asphaltenes vary over a very small range so that the H/C ratio is fairly constant at about 1.1-1.2, which is characteristic of a strong aromatic composition. Asphaltenes are typically defined by solubility as benzene soluble and pentane or heptane insoluble 1,2,3 .…”

Section: Introductionmentioning

confidence: 99%

“…Most of the miscible solvents are capable of causing asphaltene flocculation and deposition. In general, as more gas dissolves into the crude oil, the more severe the asphaltene problem is 1,2,3,4,5 .…”

Section: Introductionmentioning

confidence: 99%

Asphaltene Inhibitor Evaluation in CO2 Floods: Laboratory Study and Field Testing

Yin¹,

Yen²,

Asomaning³

2000

SPE Permian Basin Oil and Gas Recovery Conference

View full text Add to dashboard Cite

TX 75083-3836, U.S.A., fax 01-972-952-9435.Abstract CO 2 miscible gas flooding is a popular method of improved oil recovery. It is widely used in the Permian Basin. Asphaltene deposition in many of these systems is a costly operational problem associated with the utilization of this method of recovery. A CO 2 flood in West Texas was experiencing major problems with asphaltene deposition related ESP failures and tubing plugging.Operational procedures, field experience and a successful chemical program have greatly reduced the cost of these problems over the last 3 years. A new inhibitor for continuous capillary injection was recently developed and performed well on live oil lab tests. To evaluate the field performance of this new asphaltene inhibitor, a wellhead side stream filter loop was constructed to monitor asphaltene precipitation/deposition. The objective was to measure and compare the time needed to plug a given size filter with untreated and chemical treated produced fluids. Pressure data at the filter loop and wellhead was also recorded to monitor the effectiveness of the treatments.The field trial results proved the use of a filter-plugging side stream was an effective way of assessing asphaltene inhibitor performance. Based on the filter plugging and wellhead pressure data, it was concluded that asphaltene precipitation/deposition occurred if the produced fluid was not chemically treated. The standard field product used successfully in the past was able to reduce asphaltene deposition and doubled the filter plugging time. The new asphaltene inhibitor was shown to be more effective for stabilizing the asphaltenes in the CO 2 flooded produced fluids.The new inhibitor extended the time needed to plug a filter by more than four times as compared to untreated fluids.Case history information, laboratory tests results, side stream configuration, field test procedure and field test results are presented.

show abstract

Formation Damage Prevention through the Control of Paraffin and Asphaltene Deposition

Cited by 76 publications

References 13 publications

Heavy Organic Deposition and Plugging of Wells (Analysis of Mexico's Experience)

Heavy Organic Deposition and Plugging of Wells (Analysis of Mexico's Experience)

Prudhoe Bay Field Study - Return Fluid Analysis

Asphaltene Inhibitor Evaluation in CO2 Floods: Laboratory Study and Field Testing

Contact Info

Product

Resources

About