The Moncrief-Munger KMA Unit Waterflood Project

Abstract The Moncrief-Munger KMA Unit is located approximately one mile north of Kamay or approximately twenty miles west of Wichita Falls, in Wichita County, Texas. This unit is composed of approximately 70 wells and is a portion of the KMA Field. The KMA Field contains approximately 1,500 wells on 30,000 productive acres and extends from northwest Archer County, Texas, to south-central Wichita County, Texas. The Moncrief-Munger KMA Unit contains the discovery well in the KMA Field. This well was drilled and completed by Deep Oil Development Company on March 11, 1931. The lease containing this well was later bought and is presently operated by W. A. Moncrief and Sons, Fort Worth, Texas. The main producing interval in the KMA Field is the Strawn formation, which is separated into two producing zones. The Goen Limestone formation, which is encountered immediately below the KMA formation, is also productive in a small portion of this Unit area. The Strawn interval is encountered at approximately 3,700 feet while the Goen interval is found at approximately 3,900 feet. The structure in this field is anticlinal with the sand being deposited on the flanks of the structure. The water flood project was begun in January, 1960, with a 20-acre five-spot pattern being used on the heavily developed western edge and a peripheral pattern being utilized throughout the central and eastern portions of the unit. Approximately two years after the initial water injection, the unit was expanded to the west, utilizing a 40-acre five-spot pattern in that area. At present, the water flood area in this project covers approximately 1,540 acres. As of January 1, 1962, the water flood program had increased production from approximately 52 barrels of oil per day to approximately 870 barrels of oil per day and resulted in a cumulative recovery of approximately 344,000 barrels of oil. Flood performance to this time has been very satisfactory, however, numerous problems such as thief zones, water compatibility difficulties, necessity to sand frac producing wells to relieve well bore damage difficulties, and the necessity to perform extensive workovers on new wells drilled prior to the beginning of this project due to mud block conditions have been experienced in this project. Introduction During the last several years, increasing emphasis towards the installation of water flood projects in the KMA Field in the North Texas Area has been indicated. The size of these projects vary considerably and at present, approximately thirteen or more individual water flood projects are being conducted in the field with an additional six in the installation and planning stage. The success or failure of these projects has been of great importance to the North Texas Area and in an effort to clarify the size, extent, and performance of the various major projects now being carried on, Figures No. 1 and 2 have been prepared as an introduction to this Paper. and the Paper entitled "Production-Performance of the Fassett and Tuttle Area" to be delivered by Mr. Hamman. As shown in Figure No. 1, the KMA Field extends from northwest Archer County, Texas to south-central Wichita County, Texas.