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Water insoluble materials in cementing

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Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 13–16, 2001
Paper Number: SPE-65004-MS
... a higher flow restriction (Table 4). Table 5 and Fig. 4 indicate that formation damage increases slightly when the formation is exposed to cement filtrates. The soluble calcium compounds from cement and residual water formation generates insoluble salts that reduce the flow in the porous media. SEM results...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 12–15, 2018
Paper Number: SPE-192955-MS
... in fracture size, caused by differential pressure fluctuations, without the materials being dislodged or allowing collapse. These materials are stable and insoluble in water. The spacer fluid system breaks the emulsion of oil-based drilling fluid, water wetting the casing pipe and the formation in preparation...
Proceedings Papers

Paper presented at the SPE/DOE Symposium on Improved Oil Recovery, April 17–21, 2004
Paper Number: SPE-89415-MS
...)6). 3. Calcareous material (CaCO3) (i) 2HF + CaCO3 CaF2 + H2O + CO2 hydrofluoric limestone calcium water carbon acid bi fluoride di oxide (insoluble ppt) 4. Iron compounds (Fe2O3 and FeCO3) These reactions are basically due to HCl in HF/HCl system. The sources of the iron (Fe) are from formation...
Journal Articles
J Pet Technol 27 (06): 759–764.
Paper Number: SPE-5030-PA
Published: 01 June 1975
... property drilling fluids and materials Upstream Oil & Gas sea water bentonite strength development concentration laboratory testing reduction slurry The Use of Sea Water in Well Cementing R. C. Smith, SPE-AIME, Amoco Production CO. D. G. Calvert, SPE-AIME, Dowell Introduction This study...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181346-MS
... that forms when CO 2 mixes with water, especially when primary cementing is questionable, is necessary. ( Kutchko, 2007 ) This acid attacks the OPC in a six step series of waves, first dissolving the calcium hydroxide followed by the formation of calcium bicarbonate, and then converting the calcium-silicate...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, March 2–5, 1993
Paper Number: SPE-25218-MS
... water base muds is such that mud fil- trates do not produce insoluble particulate precipitates. On the other hand, when cement slurry is pumped into a well and passes by permeable formations, the aqueous phase is squeezed into the rock pore space under relatively high differential pressure between...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18151-MS
... operations. Depending on the severity of lost circulation and the size and type of the thief zone, different lost circulation materials (LCM) are used for curing. LCM is an additive to drilling fluids, cement slurry or frac fluid penetrating a formation. LCM are either insoluble or water soluble...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 16–19, 1984
Paper Number: SPE-13131-MS
... be previously mentioned methods. These fluids can be prepared by suspending insoluble weighting material in prepared by suspending insoluble weighting material in a liquid (i.e., drilling muds) or by dissolving a soluble salt in water to make a clear brine. However, those kill-weight fluids containing insoluble...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 2–4, 2005
Paper Number: SPE-92339-MS
... Abstract A grouting system is being developed that is applicable to water shutoff, steam flooding, and high-temperature grouting/plugging for lost circulation. This grouting system uses silicate hydrates as the plugging material. We describe a means to introduce sodium silicate...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60691-MS
... and/or certain pressure and temperature combinations exist, produced water becomes super-saturated and scale precipitate in wells. The scale can be insoluble or soluble. Initial scale growth will change the surface roughness on the production tubing, raising the frictional pressure drop and reducing...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, April 5–7, 2005
Paper Number: SPE-92804-MS
... water is injected back into the reservoir. Scale is found in injectors and producers. The acid insoluble materials in these scales vary from 4% to 22%. Hence, cleanout of the horizontal hole is required in this field to keep the wells producing/injecting at their potentials.Various methods of cleaning...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124733-MS
... reacts with it to form water-insoluble calcium carbonate. Longer term, the presence of water dissolved with CO2 (or carbonic acid), if allowed to contact the cement sheath, can dissolve the calcium carbonate to bi-carbonate, which then could be displaced if a flow channel were to be present or formed...
Journal Articles
J Pet Technol 21 (04): 497–504.
Paper Number: SPE-2161-PA
Published: 01 April 1969
.... Test results show that the wax-polymer diverting agent, which is oil-soluble, water-insoluble and de formable, out-performed the conventional materials both in oil slurries and in aqueous surfactant slurries. Naphthalene, when added to and held in the hydro- carbon-carrying fluid for 10 minutes...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing Roundtable, April 5–6, 2000
Paper Number: SPE-60700-MS
... nozzles to drill a 2 1/4-in. hole through the scale bridge using a Sterling Bead slurry. A subsequent run with the Bead Blaster swivel is normally required to complete cleaning to the full diameter of the tubulars. Case Study 4 Cement plug removal A cement squeeze was performed to seal watered out...
Journal Articles
J Pet Technol 24 (05): 593–598.
Paper Number: SPE-3653-PA
Published: 01 May 1972
... reservoir temperatures and pressures. 1936 to 1946 The earliest documentation of a diverting agent was in 1936 when a patent was issued to Halliburton Oil Well Cementing Co. for the use of a soap solution that reacted with calcium chloride to form a precipitate. This was a water-insoluble, oil-soluble...
Proceedings Papers

Paper presented at the CORROSION 2005, April 3–7, 2005
Paper Number: NACE-05332
...) having a water/cement ratio of 0.55, exposed at different temperature conditions (20°C, 30°C and 40°C) were investigated. Measurement of carbonation depth, void ratio, oxygen permeability, and corrosion rate were performed in the laboratory in order to assess the influence of cement type and temperature...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63208-MS
... calcium-rich water. Matrix is the lithified mud of deposition that fills most of the space not occupied by grains. This mud has several sources: chemical precipitation, break up of skeletal material into finer material, replacement of limestone by dolomite; stylolitization, the formation of stylolites...
Journal Articles
J Pet Technol 23 (05): 551–558.
Paper Number: SPE-3007-PA
Published: 01 May 1971
... materials to pro- vide water wetness, (2) the removal of the oil-wetting substance by detergency, or (3) the removal of the oil- wetting material by solvency. During the course of this investigation, both laboratory and field tests were conducted on surface-active materials capable of both adsorbing...
Journal Articles
J Pet Technol 23 (05): 559–564.
Paper Number: SPE-3045-PA
Published: 01 May 1971
...- mature entry of water or gas into the producing well- bore in both primary and assisted recovery operations also creates many problems. Numerous mechanical, physical, and chemical tech- niques have been used to try to overcome these prob- lems. The most commonly used technique is cement squeezing...
Journal Articles
J Can Pet Technol 36 (09).
Paper Number: PETSOC-97-09-07
Published: 01 September 1997
...-iinants in an aquifer. ging and cementing agent. Introduction Experimental In heavy oil fields, water responds to pumping more readily than viscous oil, so wells on primary production commonly water- Materials out after low recoveries of the oil-in-place. This is a serious prob- The bacterial strain used...

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