Abstract
Acidizing has been frequently used to dissolve the plug or debris in the zone. Due to the debris which plugged the zone, the injection pressure rises higher. The water injection rate cannot meet the demand of production department. Conventional acidizing treatment in high-pressure water injection wells needs rig operation to install a higher pressure rating wellhead after bleeding off pressure and pulling operation. The complex procedure makes the operation cost expensive. What is more, bleeding off pressure leads to pressure reduction of formation, which needs a long time of pressure buildup. High-pressure squeeze acid across wellhead technology has been developed to reduce the rig cost and operation time while decreasing damage to the formation. Before acidizing operation, the in-tubing sealing tool is run inside the first tubing below the tubing hanger through vertical passage of the wellhead equipment by special snubbing device. The in-tubing sealing tool sets in the tubing. The acid fluid is pumped into the tubing directly through surface cock valves manifold. The wellhead would not be affected by the acid fluid of the acidizing processes since it has been isolated from the tubing by the in-tubing sealing tool. High-pressure squeeze across wellhead operations has been conducted in 18 wells successfully for several oilfields, such as central Hebei and Erlian. The peak pressure in these operations is double of the working pressure rating of wellhead. The technology can significantly improve operation efficiency, reduce costs, and avoid formation damage caused by workover. It has made an innovation than conventional acidizing treatment and shows a wide application prospect.
Copyright 2017, Shaanxi Petroleum Society.
This paper was prepared for presentation at the 2017 International Petroleum and Petrochemical Technology Conference in Beijing, China, 20–22 March, 2017.
This paper was selected for presentation by the IFEDC&IPPTC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC&IPPTC Committee and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC&IPPTC Committee, its members. Papers presented at the Conference are subject to publication review by Professional Committee of Petroleum Engineering of Shaanxi Petroleum Society. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of Shaanxi Petroleum Society is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC&IPPTC. Contact email: paper@ifedc.org or paper@ipptc.org.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Economides MJ, Nolte KG (2000) Reservoir stimulation, 3rd edn. Wiley Press
Petrone D, Rice P, Pedersen JH, Stjernholm A (2008) An isolation and remediation solution for wellhead maintenance in the North Sea. In: 2008 SPE/ICoTA coiled tubing and well intervention conference and exhibition in The Woodlands, Texas, USA, Apr 2008, pp 1–7
Surjaatmadja Jim B, Ripley HE (1992) Wellhead isolation tool nozzle design reduces erosion of well tubing. J Can Pet Technol 10(4):35–39
Garvin T (1994) Low-pressure wellhead for high-pressure stimulation. J Pet Technol 5(5):383
Feng Y, Gray KE (2016) A parametric study for wellbore strengthening. J Nat Gas Sci Eng 3(30):350–363
Burns T (1990) Wellhead Isolation Improves Safety and protects equipment. In: Proceedings of 37th Annual Meeting Southwestern Petroleum Short Course, Lubbock, Texas, USA, pp 1–4
Feng Y, Jones JF, Gray KE (2015) Pump-in and flow-back tests for determination of fracture parameters and in-situ stresses. In: AADE National Technical Conference & Exhibition, San Antonio, Texas, USA, Mar 2015, pp 1–3
Acknowledgements
The authors would like to thank Petroleum Production Engineering Research Institute of Huabei Oilfield Company to permit the publication of this work.
The work and dedication of the all personnel involved in the execution of the operations and testing are greatly appreciated.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Huang, H. et al. (2019). Application of High-Pressure Squeeze Acid Across Wellhead Technology for Water Injection Well. In: Qu, Z., Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2017. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-7560-5_53
Download citation
DOI: https://doi.org/10.1007/978-981-10-7560-5_53
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-7559-9
Online ISBN: 978-981-10-7560-5
eBook Packages: EngineeringEngineering (R0)