Treatment method for casing channeling and casing leakage of oil and gas production well
A technology for production wells and pipe running outside, which is applied in chemical instruments and methods, earthwork drilling and production, wellbore/well components, etc. It can solve the problem of large amount of plugging agent used in plugging operations, difficult adjustment of curing time, and high construction safety risks. problems, to achieve the effect of improving the bearing strength of the ground, ensuring the high bearing capacity and timeliness of construction, and increasing the safety and success of construction
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Embodiment 1
[0031] A method for controlling channeling and leakage of oil and gas production wells with good plugging efficiency, high success rate, low cost and quick results, specifically comprising the following steps:
[0032] Step S1, configuring the first blocking agent, the second blocking agent and the third blocking agent respectively. The first blocking agent is a Guangya gel solution with a mass percentage concentration of 1.2% obtained by dissolving Guangya smart gel dry powder in clear water. The second blocking agent is a ready-to-use non-crosslinked gel solution with a concentration of 4% by mass, and the gel solution contains sodium chloride with a concentration of 5-10% by mass. Described the 3rd blocking agent is that the density 1.8g / cm that prepares and uses now 3 of grout. The configuration method of the second blocking agent: ready-to-use, first dissolving sodium chloride in clear water, and then adding Guangya intelligent gel dry powder into the clear water to obt...
Embodiment 2
[0045] A method for controlling channeling and leakage of oil and gas production wells with good plugging efficiency, high success rate, low cost and quick results, specifically comprising the following steps:
[0046] Step S1, configuring the first blocking agent, the second blocking agent and the third blocking agent respectively. The first blocking agent is a Guangya gel solution with a mass percentage concentration of 1.5% prepared by dissolving Guangya smart gel dry powder in clear water. The second blocking agent is a ready-to-use non-cross-linked gel solution with a mass percentage concentration of 6%, and the gel solution contains calcium chloride or magnesium chloride with a mass percentage concentration of 1-5%. Described the 3rd blocking agent is that the density 1.8g / cm that prepares and uses now 3 of grout. The configuration method of the second blocking agent: prepare and use immediately, first dissolve calcium chloride or magnesium chloride in clear water, the...
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